Adsorptive/Extractive Voltammctry for Determining Clozapine at Carbon Paste Electrodes

Abstract

Abstract: This paper reports differential pulse stripping voltammetry for determining clozapine, an an-tipsychotic drug, at carbon paste electrodes. Clozapine exhibits an anodic peak at 0. 45 V (vs Ag-AgCl). The response is linear at the range of 1× 10^-6-1× 10^-8g/mLwith a detection limit of 4×10^-9 g/mL. It is demonstrated that the adsorption and extraction play an important role during preconcentration. The ratio of these two parts is evaluated by chronocoulpmetry. The open circuit accumulation/medium exchange/ stripping voltammetry scheme is used to measure clozapine in tablets and urine sample without pretreatment.

Key words: Clozapine, Adsorption, Extraction, Stripping voltammetry, Chronocoulometry

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Peng Tuzhi, Yang Zhongping, Lü Rongshan. Adsorptive/Extractive Voltammctry for Determining Clozapine at Carbon Paste Electrodes[J]. Chem. J. Chinese Universities, 1990, 11(10): 1067.

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Adsorptive/Extractive Voltammctry for Determining Clozapine at Carbon Paste Electrodes

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